King Lot by Makinzy.
King Lot was the king of Orkney. King Lot had 10 children. Sirs Gawain, Agravaine, Gaheris, Gareth, Mordred and possibly Beacurs, as well as the Ladies Cundrie, Itonje, Soredamor, Elaine and Thaney. He married King Arthur's half-sister, Anna alias Morgause.When King Uther fell ill, Lot was entrusted with the command of the British armies in their struggle against the Saxons. Upon Uther's death, however, Arthur was revealed as his heir, and Lot initially rebelled against this new King. He was defeated at the Battles of Caerleon and Bedegraine and, deserted by his sons, he was forced to return to his own kingdom to repel Saxon attacks.Gawain eventually beat him in single combat and persuaded him to befriend King Arthur.
King Lot was the king of Orkney. King Lot had 10 children. Sirs Gawain, Agravaine, Gaheris, Gareth, Mordred and possibly Beacurs, as well as the Ladies Cundrie, Itonje, Soredamor, Elaine and Thaney. He married King Arthur's half-sister, Anna alias Morgause.When King Uther fell ill, Lot was entrusted with the command of the British armies in their struggle against the Saxons. Upon Uther's death, however, Arthur was revealed as his heir, and Lot initially rebelled against this new King. He was defeated at the Battles of Caerleon and Bedegraine and, deserted by his sons, he was forced to return to his own kingdom to repel Saxon attacks.Gawain eventually beat him in single combat and persuaded him to befriend King Arthur.
Bibliography
http://www.earlybritishkingdoms.com/bios/lot.html